If I were to buy another drive, I'd get the NEC 3500.
I think DL support is a good 'forward compatability' item to get now.
I've got an NEC 1100a and its been rock solid stable, especially with the modded firmware from Etna. It was fine with out modded firmware, I just had cause to get region auto-reseting as I had R2 discs I watch.
e6400 Core 2 Duo @ 2.13ghz
GeForce 7600GT 256mb PCI-e
2gb DDR2 667mhz Patriot ram 1.8v in d/c
Gigabyte GA-965P-DS3 F10 BIOS
WD Caviar SE16 250GB SATA300 7200RPM 16MB Buffer
Samsung SATA2 80gb 7200rpm
Samsung SH-S182D 18x DVD burner